dichlorvos

Etymology
From.

Noun

 * 1)  A highly volatile organophosphate, 2,2-dichlorovinyl dimethyl phosphate (DDVP), widely used as a fumigant to control household pests and to protect stored product from insects.
 * "Degradation of trichlorfon occurs through the splitting of the Phosphorus-Carbon (P-C) bond and through hydrolysis of the poOCH bonds resulting in trace amounts of dichlorvos, a more acutely toxic organophosphate."